Pedigrees and karyotypes provide the means for individuals to identify their risks of genetic disorders. what can be observed on a karyotype but not on a pedigree?

a. family carriers of a genetic disorder
b. family history of a genetic disorder
c. risk of a genetic disorder in offspring
d. a visual image of a chromosomal defect

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.